Insulated rail-joint.



vPATENTED AUG. 9, 1904.

RAIL JOINT BROOK No. 767,273. I

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PATENTED AUG. 9; 1904.

E wivw VNI P. HOL'BROOK. INSULATED RAIL JoINT.

IINTTEE STaTEs Patented August 9, 1904.

PATENT OEETEE.

PERCY HOLBROOK, OF NEV YORK, N. Y., ASSIGNOR TO WEBER RAIL- IVAY JOINT MANUFACTURING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF TEST VIRGINIA.

INSULATED RAIL-JOINT.

SPECIFICATION forming part of Letters Patent No. 767,273, dated August 9, 1904.

Application filed November 13,1903. Serial No. 181,038. (No model.)

State of New York, have invented certain newv and useful Improvements in Insulated Rail- Joints, of which the following is a specification, accompanied by drawings.

This invention relates to insulated rail-joints; and its objects are to improve upon the construction of such joints and increase their ef ciency with strength and simplicity of parts.

Further objects of the invention will hereinafter appear; and to these ends the invention consists of an insulated joint embodying the features of construction, combinations of elements, and arrangement of parts, substantially as hereinafter fully described and claimed in this specification, and shown in the accompanying' drawings, in which- Figure l is a transverse sectional view of a joint embodying the invention. Fig. Qis a sectional plan view on the line :e rv of Fig. l, and Fig. 3 is a sectional plan view of a modification.

Referring to the drawings, A and B represent the meeting ends of rails to be insulated one from the other. In this instance the rails are shown upon a chair C, having a base D and an upright E, the upright in this instance forming a bolteplate or member extending across the joint.

Between the upright E and the web of the rails is arranged a filling-block F, which is preferably of wood. This filling-block F may be continuous` as shown in Fig. 2, or broken, as shown in Fig. 3. At the other side of the webs of the rails is arranged the continuous solid bar, strap, or band Cr, of metal, suitably insulated from the webs of the rails and from the bolts H. The upright of the chair is also suitably insulated from the bolts H by the usual insulating-sleeves I and washers J. Between the insulating-washers J and the nuts K are arranged the metal washers L.

The bar or band G may be insulated from the webs of the rails either by insulatingwashers O or else by a single piece of 'comparatively thin insulating material P of sufficient length for insulatinga plurality of bolts at once. The bar or band G is further insulated from the bolts, as by means of the insulating-washers J and sleeves I.r

The base of at least one of the rails should be insulated from the base D of the chair by insulation Q, and in order to hold said insulation in place it may be extended upwardly between the filling-block F and the upright of the chair, as shown.

All of the bolts may be insulated by means of the sleeves I and washers J, although this is not necessary, for it is only necessary that the bolts of at least one of the rail-sections be insulated from the metal bar G and the bolts of at least one section be insulated from the upright E ofthe chair to prevent the current from passing from one rail to the other.

The washers J and O and sleeves I are preferably of insulating fiber, as is also the continuous insulating-strip P.

According to the construction shown and described a strong and compact insulated joint is obtained.

Obviously some features of this invention may be used without others, and the invention may be embodied in widely varying forms.

Therefore, without limiting the invention to the construction shown and described nor enumerating equivalents, I claim, and desire to secure by Letters Patent, the following:

l. An insulated rail-joint, comprising the meeting ends of rails, a bolt-plate at one side of the joint, with a filling-block of-insulating material between the rails and said plate, bolts for securing the parts'ofl the joint together, a bar or band extending across the joint at the other side and suitably insulated from the bolts, said band being insulated from the rails by thin insulating fiber placed between the band and the webs ofthe rails,for substantially the purposes set forth.

2. An insulated rail-joint, comprising the meeting ends of rails, a bolt-plate at one side of the joint, with a filling-block of insulating material between the rails and said plate, bolts for securing the parts of the joint together, a

bai' or band extendingacross the joint at the other side and suitably insulated from the bolts, said band being insulated from the rails by thin Washers of suitable insulating material placed over the bolts and arranged between said band and the Webs of the rails, for substantially the purposes set forth. l

l In testimony whereo'tl l have signed this l speeihcation 1n the presence of two subscr1bing witnesses.

PERGY HOLBROOK. Witnesses:

E. VAN ZANDT, A. L. OBRIEN. 

